Re: AudioUnit and FFT (Daniel Todd Currie)
Re: AudioUnit and FFT (Daniel Todd Currie)
- Subject: Re: AudioUnit and FFT (Daniel Todd Currie)
- From: "Jay Ridgeway" <email@hidden>
- Date: Wed, 17 Mar 2004 14:03:16 -0500 (EST)
- Organization: AOL
Hmmm... this works. Excellent!
How do you find the frequency associated with a particular index in the
outputData float array? Thanks.
Jay
email@hidden wrote on 2/28/04, 1:00 AM:
>
>
A very simple implementation using FFTW on a single-channel array is as
>
easy as this:
>
>
> fftwf_plan p;
>
>
>
> p = fftwf_plan_r2r_1d(fftSize, inputData, outputData, FFTW_R2HC,
>
> FFTW_ESTIMATE);
>
>
>
> fftwf_execute(p);
>
> fftwf_destroy_plan(p);
--
bStandards are a vehicle of communication for producers and users. They
serve as a common language, defining quality and establishing safety
criteria. Costs are lower if procedures are standardized. Training is
simplified. And consumers accept products more readily when they can be
judged on intrinsic merit.b
-- American Society of Testing and Materials (ASTM)
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